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NTSB Report
March 21, 2023 · Bell 47G-2A-1 · N73905
Livonia, NY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 21, 2023
Injury Outcomes
No injuries (2 uninjured)
Location
Livonia, NY
Aircraft
Bell 47G-2A-1 (1963)
Tail Number
N73905
Operator
Frost Hollow Helicopter
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ERA23LA157
During a practice autorotation with a tail wind, the pilot began the maneuver and the helicopter initially lost airspeed; the pilot immediately corrected with forward cyclic input, which also increased his descent rate. The higher than normal descent rate continued, and he began the power recovery earlier than normal. Shortly before touchdown, the pilot noticed a slope in the terrain with the rising side to his aft. The helicopter continued to descend and the helicopter’s tail rotor contacted the ground during the landing flare. The resulting impact resulted in a loss of control and substantial damage to the tail boom and tail rotor. The pilot stated that there were no preimpact malfunctions or failures of the helicopter that would have precluded normal operation.
NTSB Probable Cause
The pilot’s delayed action to arrest the high descent rate during a practice autorotation in tailwind conditions which ultimately resulted in loss of control.
Full Narrative
During a practice autorotation with a tail wind, the pilot began the maneuver and the helicopter initially lost airspeed; the pilot immediately corrected with forward cyclic input, which also increased his descent rate. The higher than normal descent rate continued, and he began the power recovery earlier than normal. Shortly before touchdown, the pilot noticed a slope in the terrain with the rising side to his aft. The helicopter continued to descend and the helicopter’s tail rotor contacted the ground during the landing flare. The resulting impact resulted in a loss of control and substantial damage to the tail boom and tail rotor. The pilot stated that there were no preimpact malfunctions or failures of the helicopter that would have precluded normal operation.
Flight
Event TypeAccident
Event Time13:30 EDT
Nearest Airport0nm
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 47G-2A-1
Tail NumberN73905
Aircraft CategoryHeli
DamageSubstantial
OperatorFrost Hollow Helicopter
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-435 · Reciprocating · 220
Seats3
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 62 · First Class · None
Crew 2None · None
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 14 kt, gusting 25 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point52 F / 25 F
Altimeter30.30 inHg
Observation Time13:54
Weather SourceWFAC